Could you use a larger version of a c5 collet and then make a draw tube with a deep groove ball bearing mounted on the opposite end from the collet. This would allow you to attach a stationary fork to the outer race. Have this fork set up over a pivot point with one end attached to the outer race of the bearing and the other end mounted to a spring to hold collet closed (fail safe if power off or lose of air) and a pneumatic cylinder to push the arm in the opposite direction of the spring to open the collet. Similar to the throughout bearing and slave cylinder arangement on a car clutch. The unturned items could be fed through the tube similar to a bar feeder for a lathe.
On 15-07-10 08:56 AM, Viesturs Lācis wrote: > Hello! > > I need to build a machine for rotary milling of wood parts. The thing > is that customer wants the parts in the rotary head to be swapped > automatically, so some kind of cnc-operated chuck is needed. > I would appreciate, if somebody could share a link to something like > that. Total range of parts to be machined is 13 to 40 mm, but I do > understand that operator would have to set up the jaws for particular > diameter as the chuck itself would move the jaws for few milimeters > only. > Is there any simple way to make some diy version that actually works? > I was thinking about gripping the part between some rollers, but I do > not think that there would be no slipping etc. > Any suggestions or hints will be appreciated :) > > Viesturs > > ------------------------------------------------------------------------------ > Don't Limit Your Business. Reach for the Cloud. > GigeNET's Cloud Solutions provide you with the tools and support that > you need to offload your IT needs and focus on growing your business. > Configured For All Businesses. Start Your Cloud Today. > https://www.gigenetcloud.com/ > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Don't Limit Your Business. Reach for the Cloud. GigeNET's Cloud Solutions provide you with the tools and support that you need to offload your IT needs and focus on growing your business. Configured For All Businesses. Start Your Cloud Today. https://www.gigenetcloud.com/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
